Sitascope



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` slTAscoPE. APPLICATION FILED DEC. |0| 1915.

Patented Mir. 15, 1921.

3 SHEETS-SHEET 2.

J L I WJTNESSES.- l ,14x/Nmes ,3,5 ad' Bymmz,

L. E. YAGGI AND J. L* CAMERON.

SITASCOPE.

APPLICATION FILED DECAO, 1915.

1,371,964. Pamnd Mar. 15, 1921.

3 SHEETS-SHEET 3.

PVTNESSES.- INVENTOR.

Mi @aan ,UNITED STATES PATENT OFFICE.

LAWRENCE E. YAGGI AND JAMES L. CAMERON, OF EAST CLEVELAND, OHIO, ASSIGNORS SITASCOPE.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed December 10, 1915. Serial No. 66,200.

To all whom t may concern:

Be it known that we, LAWRENCE E. YAGGI and JAMES L. CAMERON, residing at Garfield road, East Cleveland, in the county of Cuyahoga and State of Ohio, citizens of the United States, have invented and improved a new and useful device or appliance, hereinafter called a Sitascope, to be used in connection and conjunction with firearms of all kinds and description.

This invention is an improvement on the device for which application for Letters Patent has been filed by us on Julyl 1, 1915, and bearing Serial Number 37,625.

This invention and improvement provides away for sighting and firing a gun or other fire arm, independently and apart from the use of the ordinary and usual sights on said gun or fire arm, and is to be used for the concealment, protection and safety of the gunner and the gunners forces, in reducing to a minimum the danger from the loss of life or limb from the opposing forces or attacking enemies; and protecting the gunner and his fellow operators in attacking the opposing forces, and in advancing upon the enemys position, by keeping a constant and accurate fire on the enemys position, thereby enabling a portion of the gunners comrades to advance on the enemys position, hence preventing the enemy from firing directly at the advancing comrades.

This invention or appliance can be used by Sportsmen or hunters in firing at game from a concealed position.

This invention or improvement will enable the gunner, using the same, to get a clearer and a more accurate aim than can be obtained by the use of the regular sight on the gun, in that the mirage or confusion which one ordinarily encounters when aiming over the ordinary sights, is eliminated.

7e accomplish the above results by detachably connecting to the gun or fire arm an adjustable tube or set of tubes containing one or more sets of cross hairs, cross Wires or markers. Said cross hairs, cross wires or markers are set preferably in the vertical tube; said tube or tubes containing two or more reflecting or refracting mirrors or prisms, one reflecting or refracting surface to be placed in an adjustable or non-adjustable frame, (preferably non-adjustable) at the upper end of the perpendicular tube, and 1n line with the object aimed at. A second reflecting or refracting surface is to be set 1n an ad]ustable or non-adjustable frame (preferably adjustable), at the bottom, or lower end of the vertical tube, so that when the rays of light striking the upper reflecting or refracting surface, are carried over the cross wires, cross hairs or markers, to the lower reflecting or refracting surface, and from there carried to the gunners eye, through an eye piece or tube, the object aimed at is clearly seen by the gunner, below the line of fire of the gun, a distance e ual to the length of the perpendicular tube. he perpendicular tube may be either a one-piece tube or a telescoping tube.

le propose to use a short horizontal tube at the upper end of the vertical tube and in line with the reflecting or refracting'surface for the purpose of shading the refiecting or refr-acting surface. The said cross hairs, cross wires or markers can be set either in the walls of the perpendicular tube or in the walls of the horizontal tubes, or both, or set in a thimble and inserted into the perpendicular tube, or the horizontal tubes or both, and attached thereto.

lVe propose to use telescopic lenses in a portion of these devices for sharp shooting purposes, for bringing the object at long range, apparently nearer the gunners eye, as in the ordinary telescope.

le procure our aim apart from the ordinary sights on the gun, the image being reflected or refracted through the tubes and over the cross hairs or cross wires, above described to the gunners eye, the tubes being adjustable by means of screws and opposing springs. The opposing springs, in addition to procuring aim, take up the shock or concussion when the gun is fired, as well as prevent lost motion of the working parts of the appliance. Vhen the set screws are adjusted, the tubes are set to a scale according to the desired range and the prevailing wind velocity, so the desired line of sight is obtained.

This appliance to be efficient on a small re arm, ordinary rifle, rapid lire or machine gun, must be used in connection and conjunction with a brace, or set of braces, detachably connected to the gun stock or butt. and forming a shoulder and body rest, and guide. These braces are to be adjustable.

1We attain these objects by the mechanism illustrated by the accompanying drawings:

Figure 1 is a side elevation, showing the sitascope attached to an ordinary military small arms rifle; it also shows the extended or telescoping arrangement for extending the eye piece to greater depths of' trench or other protection.

F ig. 2 shows the end elevation of the refracting or reflecting and recording appliance, looking at same from the butt of the Gun.

C Fig. 3 is a detailed side elevation of the opposite side of that shown in Fig. 1.

Fig. 4 is a detailed end elevation of the opposite end shown in Fig. 2.

Fig. 5 is a detailed plan of the top of the block at the juncture of the vertical and the horizontal tubes, and which block holds the reflecting or refracting surfaces.

Fig. 6 is a detailed sectional plan looking down from line 2-3 in Fig. 3, showing the working parts of the adjustments.

Fig. 7 is a sectional plan of the upper attachment between tube and boss plate looking up at line 4-5 in F ig. 4.

Fig. 8 shows a side elevation of an ordinary small arms military rifle with the sitascope attached, as illustrated in Fig. 1, and the adjustable braces attached to the gun stock, which must be used in connection and conjunction with the sitascope illustrated in Fig. 1, when the sitascope is used on small arms.

F ig. 9 is a cross-sectional view showing particularly the adjustable seat for the light deviating device.

Similar letters refer to similar parts through the several views.

Plate -bis attached rigidly to gun -aby means of screws or rivets as shown in Figs. 1, 2, 4, 7 and 8. In Figs. 1, 2, 3, 4, 6 and 7, the boss plate zhas a dovetailed wedge --g-v which lits into a corresponding wedge-shaped slot in plate and the dovetailed wedge gis attached rigidly to boss pla-te Pf- A fastening device -P- indicated in Figs. 2 and 4, fastens the wedge -gsecurely into the plate -b, so that when the gun is tipped or turned around, or over, the wedge -g-, will not be displaced. Attached through plate -eand wedge geis a ring post -s-, which is free to turn on an axis at right angles to the plate -z, and which is held snugly to the plate z by means of a screw or rivet -s, and the Vertical tube -cZ--, is inserted through the ring -.Q., and the tube -d-, is free to turn or slide through the ring -s-. The tube -CZ- at the top is inserted in block mand into block -mis inserted the horizontal shading tube -c-, forming a right angle between the tubes cand -cZ-. Similarly, the bottom tube -cin a horizontal direction meets the vertical tube -clin a block -m-. The tube 6M has a perforated cap or slide -ito conline the vision to the line of sight.

The blocks -mand -mcontain prisms or mirrors, or a combination of prisms and mirrors, or a combination of either, which are set permanently, or are adjustable. The plate -n is a cover over the opening in blocks 7nand -m in which blocks rest the prisms or mirros 0 and 0-. The mirrors or prisms -0- rest in a frame in block -m, Figs. 1, 2,73, 4 and 5, and on springs -gand screws -r-thread through plate -nand press on -0-, thereby adjusting -0- to the desired angle and throwing the line of sight down tube -(Z-. The plate -nis rigidly attached to block -mby screws p The tube -CZ- contains one or more sets of cross hairs, wires or markers --t-. These cross hairs, wires or markers are attached to the walls of the tube --ddirect, or to a thimble -fw-, which is inserted in tube -dand attached thereto.

The instrument can be used with a single set of cross hairs, wires or markers -zf, but we use the second set of cross hairs, wires or markers to obtain greater accuracy and to form a check showing errors of adjustment or alinement.

In Figs. 1, 2, 3, 4 and 6 the ring block -A- through which the tube -rZ- passes, slides on pin H- in the frame BM which is attached to the boss plate -z by the screw 0r rivet J- and the frame turns on the screw or rivet -J-, so as to bring the frame -B-- normal with axis of the tube -clwhen shifted forward or backward by screw -D and spring E-. This action or shifting of axis of tube dis to set the instrument to the desired range as marked on scale -C-. Ring 1tis attached rigidly to the tube CZ- by set screws and has an arm extending into a slot in ring block i The screw -L- threading through the ring block -A- pushes against the arm of ring -uand is opposed on the opposite side of' the arm by a spring cartridge N-. As the screw L is tightened or loosened, the spring cartridge throws the arm of ring -uto the desired mark on scale -C-, on the rim of the ring block -A. The scale -C- records the amount or drift due to the wind velocity to the right or left and that due to the rifling of the barrel. The ring cis attached to the tube -cZ- to keep the tube dfrom slipping through the ring block -A- and pulling the arm of ring -ufrom the screw --L- and the cartridge spring N- T he combination of this independent sighting device or sitascope, with a gun or small fire arm will necessarily require a holding brace attached to the stock of the gun to form a guide and a body or shoulder rest while the gunner is using or operating the independent sighting device with the gun resting on a support indicated at TV. This brace is shown in Fig. 8 attached to the stoclrof an ordinary military riiie.

This brace as here shown, comprises two rods R and S pivoted together at V, and one connected to the forward part of the stock by a two-part clamp Q, Q', and the other connected to the butt U of the stock by a clamping member T. The rods R and S can be slid lengthwise through the clamps and may be tightened in different positions, and by reason of this feature the brace can be caused to assume different positions with the rods R, S, disposed at different angles with respect to each other, as indicated by the two dotted line positions of the rods designated R, V', S and R, V, S. The rods are preferablyhollow, and their upper ends may be provided with caps S4, S, to prevent the rods pulling through the holes in the clamps, and to provide receptacles for the storage of medicines and other small necessities.

As shown in Fig. 8, the trigger of the gun is operated through an auxiliary trigger pulling device X, which hangs down in front of the brace within convenient reach of the operator when the brace is pressed against his shoulder, the rear rod S of the brace being preferably provided with a shoulder engaging pad S5.

One of the chief features of the sighting attachment is the mounting thereof, including the springs which absorb the shock and permit the sitascope to yield when the gun is tired. The recoil on firing causes the gun to have asharp rearward movement and a combined upward and lateral swing, the lateral swing being due to the rifling of the barrel. Vhen the recoil occurs, the springs in the two cartridges N and E permit the sitascope to swing on the upper transverse axis or pivot s and also to turn about the longitudinal axis of the upright tube so that the shock due to the back kick and the side swing of the gun on firing, is not transmitted to the sitascope. One important advantage of this yieldable or shock absorbing mounting is the fact that it prevents the sitascope being thrown out of adjustment when the gun is fired. A second important advantage is that it prevents a back thrust and blow against the eye of the Shooter when the gun is fired. A third advantage derived from the use of the springs is ease of adjustment for different ranges and drifts, the springs pressing on one side of the abutments opposite the adjusting screws requiring only one screw for each adjustment, this screw acting as an adjustable stop against which the abutment is pressed by the corresponding spring.

le claim:

l. A sighting attachment for guns by which a gun may be sighted from a point below the same, comprising tubular means containing light deviating devices, an attaching device to which the tubular means is pivoted to swing bodily with a rotary movement about a fixed transverse axis, and a cushion member yieldingly resisting the swinging movement.

2. A sighting attachment for guns by which a gun may be sighted from a point beneath the latter, comprising tubular means containing light deviating devices, a gun attaching device having an opening in which the tubular means is mounted to turn about its longitudinal axis, and yieldable means normally resisting the turning movement in one direction.

3. A sighting attachment for guns by which a gun may be sighted from a point beneath the latter, comprising tubular means containing light deviating devices, a gun attaching device with respect to which the tubular means may swing about a transverse axis and may turn about its longitudinal axis, and yieldable means yieldingly resisting the swinging movement in one direction and the turning movement in one di- A sighting attachment for guns comprising a tubular means containing light deviating devices by which a gun may be sighted from a. point below the latter, a gun attaching device to which the tubular means is movably connected, a normally rigid adjusting device opposing movement in one direction. and a yieldable cushioning member yieldingly resisting movement in the reverse direction.

5. A sighting attachment for guns comprising tubular means having light deviating devices and adapted to be attached to a gun so that the gun may be sighted from a point below the latter, an attaching device to which the tubular means is swiveled, a cushioning member yieldingly resisting movement of the tubular means in one direction, and an opposing adjusting screw for moving the tubular means against the action of said yieldable member.

6. A sighting attachment for guns comprising tubular means containing light deviating devices and adapted to be attached to a gun so that the gun may be sighted from a point below the latter, an attaching device in which said tubular means is mounted to rotate about its longitudinal verse aXis and mounted in said attaching de- W41. n l

Tillifilii'iT means aving an exten `=yiating devices and adapted to be attached tobawgun so that the gun may be sighted from a point below the latter, ggwattawcuhing dewgikcg, said tubular means being p Vtedtg)r said attachinnr device to swing aboutatranhsj attaching device having abutments side sides of the extension and one consisting of an adjusting screw and the other a yieldable member, whereby the tubular means may bemadjiistdior different ranges and may have ai'limited swinging movement when the gun is fired, and the tubular means having a second extension, a pair of abutments on opposite sides of said extension and consisting of an adjusting screw and a yieldable member whereby the tubular means may be rotated to make drift adjustments and may have a limited turning movement when the gun is fired.

8. A sighting attachment for guns by which a gun may be sighted Jfrom a point below the latter' comprising tubular sighting means containing light deviating devices, a plate adapted to be attached to a gun, the tubular means being yieldingly attached to said plate whereby said tubular means may yield relative to the gun under the action of the recoil or kick.

9. A sighting attachment for guns by which a gun may be sighted from a point below the latter comprising tubular sighting means containing light deviating devices, an attaching plate adapted to be connected to"'gl'saidTbulanneans at one point having a swivel connection with the plate and at another point being yieldingly connected thereto whereby the tubular means may move relative to the gun when the latter is fired.

10. A sighting attachment -for guns by which a gun may be sighted from a point below the latter comprising tubular means containing light deviating devices, an attaching plate adapted to be connected to a gun, said tubular means being connected to the plate, and adjusting means for adjusting the position of the tubular means with reference to the plate and gun for various ranges and drifts.

11. A sighting attachment for guns by which a gun may be sighted from a point below the latter comprising a series of angularly disposed connected tubes and containing light deviating devices, an attaching device by which the tubes may be connected to a gun and including a plate to which one of the tubes is connected, and adjusting devices by which said tube may be turned about its axis for drift adjustments, and may be rocked about another axis for range adjustments.

LAVRENCE E. YAGGI. JAMES L. CAMERON. Vitnesses B. L. JENKS, i H. C. VAN SWERINGEN. 

